857449 ÷ 84 
We want to figure out the number of times 857449 can be divided by 84.

Step 1:
84 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 84

On to step 2:
84 goes into 85 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 1 after subtracting 84 from 85.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 84

Going ahead to step 3:
84 goes into 17 0 times with a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 17, we end up with 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 84

Let's proceed to step 4:
84 goes into 174 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 102.0
Subtracting 168 from 174 leaves us with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 84

Going ahead to step 5:
84 goes into 64 0 times with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 1020.0
If we subtract 0 from 64, we get 64.
Append the next digit (9) from the dividend to 64 and continue with: 649 / 84

Going ahead to step 6:
If we divide 649 by 84, we get 7 and a remainder of 61.
Record the quotient 7 as the next digit in the result. 
Result so far: 10207.0
Subtract 588 from 649 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 7:
84 can be fit into 610 7 times, resulting in a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 10207.7
The remainder is 22 after subtracting 588 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
When dividing 220 by 84, we get 2 with a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 10207.72
Deduct 168 from 220 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
When dividing 520 by 84, we get 6 with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 10207.726
Deduct 504 from 520 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
84 goes into 160 1 times with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 10207.7261
If we take 84 away from 160, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 11:
760 divided by 84 is 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 10207.72619
If we take 756 away from 760, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
The number 84 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10207.72619
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
84 can be fit into 400 4 times, resulting in a remainder of 64.
The next digit of our result is 4. 
Result so far: 10207.7261904
If we take 336 away from 400, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 14:
If we divide 640 by 84, we get 7 and a remainder of 52.
Use 7 as the next digit of our solution. 
Result so far: 10207.72619047
If we subtract 588 from 640, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 10207.72619047, with a leftover of 5.2e-08.